Roving frame



May 2, 1967 w. PFEIFER ROVING FRAME Filed July 13, 1964 United States Patent ()fitice 3,316,702 Patented May 2, 1967 Claims The present invention relates to textile machinery and, more specifically, to a roving frame with a stationary arrangement of the riving members for the driving and lifting of the bobbins.

It is an object of the present invention to provide an improved roving frame which will avoid the necessity of providing double bearings for the rotatable bobbin sleeve in the rotatable fiyer sleeve.

It is another object of this invention to provide a roving frame which will greatly increase the stability and quiet operation of the machine.

These and other objects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawings, in which:

FIGURE 1 is a section through a spindle of a roving or speed frame according to the present invention;

FIGURE 2 represents a section through the upper portion of the spindle in the frame of FIGURE 1.

The present invention is characterized primarily in that the bobbin carrier is so designed that that portion thereof which is journalled in the lifting sleeve extends into the rotating sleeve and by means of key-and-groove arrangements is axially displaceably connected to the rotating sleeve so as to be rotatable therewith.

An arrangement of this type has the advantage that a double journalling of the rotatable bobbin sleeve in the rotatable fiyer sleeve is unnecessary and that the drive shaft for the bobbin and the rotatable sleeve are arranged at the lower portion in the frame. This increases the stability of the roving frame and assures a quiet operation thereof.

Referring now to the drawing in detail, the flyer, of which only the lower ends of arm 11 have been illustrate-d, is journalled in a machine frame 91 by means of an anti-friction bearing 17. The fiyer is adapted to be driven by a shaft 20 through a pair of screw wheels 21, 18 which pair also drives a flyer tube 100 guiding a bobbin sleeve 30.

The bobbin sleeve 30 is driven by a shaft 40 through a pair of screw Wheels 41, 35 and the rotating sleeve 38 which latter by means of anti-friction bearings 92, 92a is rotatably but axially non-displaceably journalled in the machine frame 91. Rotating sleeve 38 has its inside provided with axis parallel fitting grooves 39 in which a ring 59 of keys is guided, which ring is connected to the lower end of the bobbin carrier 5. Bear lugs 51 and 52 are mounted on bobbin carrier so that the bobbin carrier 5 is rotatable within a lifting sleeve 60. The lifting sleeve 60 is firmly positioned, by means of shoulder portions at its ends, between the bearings 51 and 52. Bobbin carrier 5 is thus by means of bearings 51 and 52 rotatably but axially non-displaceably journalled in the lifting sleeve 60. Lifting sleeve 60 is by means of a groove 68 and key 73 engaging the groove 68 in sleeve 60 axially displaceably guided on the machine frame and is provided with teeth 61 meshing with a pinion mounted on shaft 63. A bearing ring 101 is keyed to bobbin carrier 5 and with the bobbin carrier is axially displaceable and rotatable in fiyer tube 100. The top of the shaft of bobbin carrier 5 is displaceably and rotatably journalled in a bearing 102 (FIG. 2) which is fixedly connected to the flyer tube 100. Bobbin carrier 5 is thus by means of bearings 101 and 102 axially displaceably and rotatably guided in flyer tube 100. The upper end of bobbin carrier 5 carries a non-round dog 57 especially provided with fitting surfaces, which engages a corresponding opening in sleeve 30.

The bobbin drive shaft 40, the flyer drive shaft 20, and the pinion shaft 63 which corresponds to the mule lifting shaft on heretofore known roving machines are driven in the same manner as is the case with roving machines of standard construction, and therefore are not illustrated further in the drawing.

The vertical shaft 5 which carries the bobbin 30 is subjected to an upward and downward lifting movement by means of the lifter shaft 63, pinion 64 and lifter sleeve 60. Simultaneously shaft 5 is subjected to a rotative movement by means of bobbin drive shaft 40, the pair of screw wheels 41, 35, rotating sleeve 38 and key star 59. This upward and downward lifting movement together with the said rotative movement will, in cooperation with the rotative movement of the fiyer, bring about a winding-up of the roving and a building-up of a cop.

It is, of course, to be understood, that the present invention is, by no means, limited to the particular construction shown in the drawing, but also comprises any modification within the scope of the appended claims.

What I claim is:

1. In a speed frame: frame means, a radially outermost tube forming rotary sleeve rotatably but axially nondisplaceably journalled in said frame means, driving means arranged outside of and drivingly connected to said rotary sleeve for rotating the same, a radially inner tube located radially next to said outermost tube and forming a lifter sleeve extending into said rotary sleeve, said lifter sleeve being axially displa-ceable relative to said frame means and to said rotary sleeve, actuating means operatively connected to said lifter sleeve for axially reciprocating the same, and a bobbin carrier forming a radially innermost member in said lifter sleeve and being rotatably but axially non-displaceably journalled in said lifter sleeve and connected thereto so as to be axially displaceable together with said lifter sleeve, said bobbin carrier being rotatably connected to said rotary sleeve and being axially displaceable relative thereto.

2. A speed frame according to claim 1, which includes a flyer tube, a bobbin sleeve guided by said fiyer tube, and additional driving means independent of said first mentioned driving means and said actuating means and rotatably connected to said flyer tube for rotating the same.

3. A speed frame according to claim 2, in which said bobbin carrier is axially displaceably and rotatably guided in said fiyer tube.

4. A speed frame according to claim 1, in which said rotary sleeve has groove means extending in axial direction of said rotary sleeve, and key means slidably guided in said groove means and keyed to said bobbin carrier.

5. A speed frame according to claim 1, in which said lifter sleeve has groove means extending in an axial direction thereof, key means mounted on said frame and slidably guided in said groove means, and said lifter sleeve is by means of said groove and key means axially displaceably guided on said machine frame while being prevented by said groove and key means from rotation about its axis.

References Cited by the Examiner UNITED STATES PATENTS 2,898,729 8/1959 Anderson et al 57-95 3,089,302 5/1963 Williamson 57-96 3,091,911 6/1963 Turner 57-71 X FRANK I. COHEN, Primary Examiner. J. PETRAKES, Assistant Examiner. 

1. IN A SPEED FRAME: FRAME MEANS, A RADIALLY OUTERMOST TUBE FORMING ROTARY SLEEVE ROTATABLY BUT AXIALLY NONDISPLACEABLY JOURNALLED IN SAID FRAME MEANS, DRIVING MEANS ARRANGED OUTSIDE OF AND DRIVINGLY CONNECTED TO SAID ROTARY SLEEVE FOR ROTATING THE SAME, A RADIALLY INNER TUBE LOCATED RADIALLY NEXT TO SAID OUTERMOST TUBE AND FORMING A FILTER SLEEVE EXTENDING INTO SAID ROTARY SLEEVE, SAID FILTER SLEEVE BEING AXIALLY DISPLACEABLE RELATIVE TO SAID FRAME MEANS AND TO SAID ROTARY SLEEVE, ACTUATING MEANS OPERATIVELY CONNECTED TO SAID LIFTER SLEEVE FOR AXIALLY RECIPROCATING THE SAME, AND A BOBBIN CARRIER FORMING A RADIALLY INNERMOST MEMBER IN SAID LIFTER SLEEVE AND BEING ROTATABLY BUT AXIALLY NON-DISPLACEABLY JOURNALLED IN SAID LIFTER SLEEVE AND CONNECTED THERETO SO AS TO BE AXIALLY DISPLACEABLE TOGETHER WITH SAID LIFTER SLEEVE, SAID BOBBIN CARRIER BEING ROTATABLY CONNECTED TO SAID ROTARY SLEEVE AND BEING AXIALLY DISPLACEABLE RELATIVE THERETO. 